Thank you for the trouble you have ____ to help me.
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A
paid
B
taken
C
had
D
asked
推荐题目
At first, my new surroundings were difficult _________
#92147
A
to be tolerated
B
tolerating
C
to tolerate
D
being tolerated
A computer does only what thinking people______.
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A
have it do
B
have it done
C
have done it
D
having it done
.I was about to get on the bus __________my wife phoned me to back home at once.
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A
when
B
while
C
until
D
after